Crusher



E. H. FRICKEY Jan. 2, 1934.

CRUSHER Filed May 22, 1931 3 Sheets-Sheet l v 0% mg 0% E. H. FRICKEY Jan. 2, 1934.

CRUSHER Filed May 22, 1931 3 Sheets-Sheet 2 Jan. 2, 1934. E. H. FRICKEY 1,942,143

CRUSHBR Filed May 22, 1951 3 Shee'ts-Sheet 3 Patented Jan. 2, 1934 UNETED gTATES PATEWE @FFICE 1,942,143 oaUsH R Edward H. Frickey,

Pasadena, Park, M0.

Application May 22, 1931. Serial No. 539,178

2 Claims.

be known the provision of a crusher which is adapted to handle material to be crushed which has a relatively large amount of foreign matter therewith, such as mud and the like; the provision of a crusher of the class described which is adapted to mechanically separate detrimental clogging material from the desired product, and which is adapted to continuously carry off said separated. clogging material; and, the provision of a crusher of the class described which is simple to operate, and completely enclosed. Other objects wfll be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified in the structure hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, in which is illustrated one of various possible embodiments of the invention,

Fig. l is a right side elevation of the crusher, certain parts being broken away;

Fig. 2 is a rear elevation of the crusher shown in Fig. 1;

Fig. 3 is a vertical section taken on line 33 of Fig. 1; and,

Fig. 4 is a plan view of a pair of joined links.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring now to the drawings, and more particularly to the crusher per se, there is illustrated a frame comprised of side castings l3 and having a hopper chute 7. The two side castings 13 are suitably braced and held apart by end castings, said castings 13 being bolted thereto by bolts 12. The castings 13 are an assembly of component castings and serve to close part of the device and to also tie the ends of castings together at their upper portions. Thus, the side castings 13 and the end castings comprise a frame 3 adapted to enclose a set of rotary hammers 19 mounted between discs 17 (Fig. 3). The disc faces are machined to receive the hammers between them and are provided with through bolts 21 for tightening the hammers. Other holes 23 in the discs permit adjustment of each set of hammers as wear on said hammers takes place. The adjustment is radial so that as the hammers wear shorter, compensation may be effected.

The discs and hammers are mounted upon a shaft 25 running cross-wise of the machine. This shaft is borne in ring-oiled bearings 27 at each side of the device. the side castings. On the left end of the shaft, and outside of the machine is borne a fly-wheel 29, and on its right end a driving coupling 31.

Cradled below the rotary hammers 17 are cage bars 33. They are held in position by means of bolts 35 and cage liners 37. The liners are bolted to the side castings 13 and serve as end supports for the cage bars. They also protect the The bearings are .cast with surfaces to which they are bolted from abrasion.

These bars serve to permit only material which has been crushed down to a proper size to pass out of the base of the machine.

At the ends of the hammer-disc assembly, or rotor, are placed end liners 39. These are bolted to the frame 3 and serve as renewable safeguards against abrasion of said parts. lined with liners 14 at points subjected to abrasion.

Forwardly of said machine a shaft 45 running crosswise of the machine is mounted in adjustable bearings 4'7. The bearings are fastened to the upper ends of bearing supports 49 which are suitably fastened to the side of the frame 3. Set screws 53 are adapted to adjust the bearings 47 in the bearing supports 49. The shaft 45 carries sprockets 55 which are adapted to carry an anchor plate chain 61 to be carried thereon.

A shaft 57, similar to the shaft 45,'mounted between the end castings and supported thereby carries sprockets 59 similar to sprockets 55. Over the sprockets 55 and 59 is placed said belt or chain 61 comprising links or breaker plates-62 formed of manganese steel or other wear or im-' pact resisting material. Each link 62 comprises a bar at the ends and on one side of which are The chute 7 is formed oppositely jutting gudgeons 64 adapted to Fig. 4) may be interfitted. Through the various sets of interfitting hinged portions 68 and 66 are bored, or otherwise formed, aligned holes 70 adapted to receive a link pin or rod '72.

The holes 70 pass through said gudgeons 64 and are therein countersunk. The rod 72 is riveted over at the countersunk holes as the chain 61 is made and is formed flush with the gudgeons ends.

It is thus evident that the gudgeons 64 serve to mesh with the sprockets 55 and 57 and may be driven thereby, and thus the chain is driven as the sprockets are rotated, as indicated in Fig. 2, by the coupling 83.

The link chain or breaker plate 61 and the hammers 17 form the crushing elements of the crusher. The links 62 cover the width of the hammer rotor in projection. In order to withstand the attendant impact of the crushing operation, the chain 61 is backed by a suitable rugged paten 63. The paten 6., is pivoted to the side castings 13 of the frame by means of a shaft 65,

and backs the breaker plates at the point of impact. It may be adjusted to different required degrees of slope of the breaker plates or to different degrees of wear in said hammers by means of the lateral shafts 67 passing through slots 78 in flanges 74 of the paten 63 and through slots 76 in the side castings 13. Outside of the castings 13 ,the shaft 67 is bolted at each end to side bars 69 which extend through lugs 71 of the castings.

flauxiliary shaft 75 Working in slots similar to the shaft of the hammers is driven relatively fast above-mentioned one serves to hold the paten in position by clamping its ends to said castings 13;

The breaker plate train is driven relatively slowly by means of the splined universal joint 33 and the through a belt connection to the coupler 31. It

is'thus seen that the material to be crushed, is fed to the hopper 7, and by gravity and with the help of the moving breaker chain 61 is carried in and is .crushed by the hammers 19 against the chain 61, and is passed through the cage bars 33.

When materials which are extremely wet and have associated with them a great deal of dirt and clay or the like, are crushed in a crusher such as was hereinbefore described, the mud packs around and sticks to the cage bars 33 and interferes in general with the operation of the crusher. I have overcome this difficulty by opening the top of the crusher in order that the dirt, mud and the like may be thrown out of the crusher and have provided means for continuously removing said mud and dirt as it is thrown out. Thus such a crusher may be adapted to crush mud laden material.

Referring now to the means provided for removing such mud, as shown in Fig. 3 top covers have been removed and a box like cover 84 comprising side portions 85, end portions 87 and a top piece 89 has been substituted. Thus the immediate cover for the crusher has been removed'and a completely enclosing but spaced cover has been substituted. The side and top pieces 35 and 87 and 89 are formed from a relatively lightweight material, inasmuch as they receive no appreciable shocks. They are suitably joined together by channel pieces and L pieces 91 to provide a relatively rigid structure or box-like cover 84. The sidewalls of the box cover 84 are bolted to the side castings 13 by bolts 03. A heavier plate 95 extending crosswise the width of the machine is adapted to prevent mud or crushed material from flying into the hopper 7.

Mounted on the shaft 57, and driven thereby is a sprocket 101 adapted to drive another sprocket 103 by a chain 100. The sprocket 103 is keyed to and mounted on a shaft 104 on which is also mounted a sprocket 105. The sprocket 105, driven by the shaft 104, is adapted to drive another sprocket 107 by the chain 106. The sprocket 107 is keyed to a shaft 108 on which is also mounted a gear 109. Shafts 117 and 119 respectively, are suitably mounted in bearings and extend crosswise inside of the box cover 84. Gears 113 and 115 mounted on the shaft 117 and 119 respectively and outside the cover 8 1, mesh with the teeth of the gear 109, and consequently are driven by the gear 109. A plurality of sprockets 123 and 125 are respectively mounted on the shafts 117 and 119 inside the box 84 and are adapted to drive and support chain belts 127 and 129 respectively, the chain belts being similar to the breaker plate belts 61, but of much lighter weight. It is to be understood, however, that the chains 127 and 129 may comprise a plurality of individual chains mounted close together. A shaft 131, extending crosswise and inside of said box cover 84 and suitably mounted in adjustable bearings 132 is adapted to mount a plurality of sprockets 133 (Fig. 3), which guide the chain 127, extending crosswise and lengthwise of said box 84. Likewise, a shaft 135 adjustably mounted in bearings 136 supports a plurality of sprockets 137 Which guide the chain 129.

The tension in the chains 127 and 129 is adjustable by means of the adjustable bearings 132 and 136.

Thus the chains 127 and 129 are driven by the sprocket 101 mounted on the shaft 57, which shaft is driven by the splined coupler 63. The movement of the chains 127 and 129, as shown by the arrows, provide respectively a moving top or ceiling for the box 84; which moves to the rear thereof, and a moving back surface of the box 64 which moves from the top to the bottom therei of, and thus material striking and sticking to any portions of the surfaces provided by the chains 127 and 129 is carried away from the crusher.

The operation of the apparatus is as follows: 7

Mud laden material to be crushed is fed into the hopper 7 and gravity carries it downward on the sloping breaker plate chain 61, which is also moving downward, into the paths of the rapidly enough to pass the cage bars 33. Substantially all of the material is crushed before it reaches the end of the cage bar area. I have found that the wet mud and clay and other foreign materials which would otherwise tend to clog the plates 33 is picked up by the hammers at the mouth of the hopper 7 and from the cage bars 33 and carried around the grinder, past the cage bars 33 until at approximately the area of the grinder marked X it begins to leave the hammers and is thrown oif by the action of centrifugal force. Thus by the time the hammers reach the portion of the grinder marked Y the hammers are substantially free from mud. In this way, the mud which would otherwise collect over the cage bars 33 and over the top of the crusher has been removed.

The mud material thus slung from the hammers flies out of the grinder casing proper onto the moving surfaces provided by the plate chains 127 and 129.

where the chain goes around the sprockets 123 and 137 respectively but suitable means may be provided to remove the mud in the event that it is unusually sticky and does not drop oil. The mud thus removed drops down and may be removed in any suitable manner as for instance through a door 139 in the side of the cover 84.

Inasmuch as the wet mud substantially increases the friction between the material being crushed and the cage bars, substantially all the material is crushed and passed through the cage bars 33 by the time it reaches the end of the cage bar area, and hence, very little escapes into the cover box 84. Thus substantially mud only strikes the chains 127 and 129 and accordingly they may be of relatively light weight construction. Hence the initial cost of the chains 127 and 129 and the cost of the power required to run them is relatively small.

An advantage of the invention is that the type of grinder herein described may be used for grinding wet and mud laden materials whereas formerly much diiiiculty was incurred in endeavoring to grind such materials in this type of crusher. Furthermore, with my invention it is possible to substantially separate the mud from the final product and such a separation is often greatly desired. The light weight and simplified construction, as well as the type of drive used makes the invention commercially attractive from a financial standpoint. It may or may not be sold separately from the regular grinders and hence other hammer crushers may be equipped with my invention to crush mud laden materials.

The moving surfaces 127 and 129 are adapted to prevent the mud, removed from the crusher, from piling up on the sides of the cover 84 and to provide a cheap and effective method of continuously and efficiently removing the deposit. Further, the bearing adjustments available are adapted to insure adjustments for most satisfactory working conditions.

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results obtained.

As many changes could be made in carrying out the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. In a crusher, rotary crushing hammers, means cooperating with said hammers at one tangent region to effect crushing, a crushed-material outlet associated with said hammers adjacent the crushing region, arcuately located cage bars below and adjacent to the hammers, said crusher having a foreign-material outlet adjacent said hammers beyond said cage bars, the crusher having a passage joining said outlet and leading to a region separate from the region of delivery of crushed material, said foreignmaterial outlet being arranged to provide substantial upward movement of foreign material tangentially from the hammers, and a reach of movable conveyor means directed laterally from said foreign material outlet and located thereabove and adapted to carry centrifugally separated foreign material away from said foreignmaterial outlet, and a second reach of conveyor means angularly located with respect to said first reach, said reaches each comprising a separate endless chain, and clean-out means located adjacent the end of the second reach, said cleanout means being at a point separate from the point of delivery of crushed material.

2. In a crusher, rotary crushing hammers, means cooperating with said hammers at one region to effect crushing, a crushed-material outlet associated with said hammers adjacent the crushing region, cage bars located below said hammers, said crusher having a foreign-ma terial outlet adjacent to said hammers and beyond said cage bars, the crusher having a passage joining said outlet leading to a region separate from the region of delivery of crushed material, said foreign-material outlet being arranged to provide substantial upward movement of foreign-material tangentially from the hammers, and a reach of conveyor means directed laterally from said foreign-material outlet and located thereabove, and adapted to carry centrifugally separated foreign-material away from said foreign-material outlet, and a second reach of conveyor means angularly located with respect to said first reach and directed downwardly, said reaches each comprising separate endless chains.

EDWARD H. FRICKEY. 

